U S Government--postal Service, Edgerton Edgerton, MO 64444 Phone : (816) 227-3734 Business Category Government Offices & Public Schools Post Office - Edgerton 604 Belt Ave Edgerton, MO 64444 Phone : (816) 227-3734 Post Office - Edgerton Business Category Post Offices Toll-Free           (800) ASK-USPS